Your job: effortless.
Refrigeration measurement technology smart & simple – with perfectly connected instruments.
In refrigeration technology, one thing counts above all: generating precise measurement results with as little effort as possible. That's exactly what our measuring devices are designed for. By using smart technology, Testo has managed to reduce the work and time effort while simultaneously guaranteeing high quality and precision of the measurement results.
The digital manifolds from Testo have proven themselves for years due to their precision, quality and ease of use.
Far more precise measurement results with more consistent accuracy than with analog manifolds
Ongoing updates of refrigerants
Automatic calculation of crucial system parameters
The testo Smart app guides you quickly and easily through measurements on refrigeration, air conditioning and heating systems.
Now New:
PRO measuring programs to increase the efficiency of your applications
Multifunctional
Compatible with all Bluetooth-enabled testo measuring devices.
Efficient
Reports can be sent directly via email.
Fast
All measured values at a glance.
Simple
Intuitive measurement menus.
Clever
Free download, free use
NEW
PRO measuring programs
At Testo, you’ll find the right measurement technology for a cost and energy efficient operation of heat pumps. You also make sure the environment isn’t burdened by any leaked refrigerant.
Pressure and temperature testing
Controlled refrigerant service
Easy tightness testing and evacuation
Download the exclusive practical guide for free now.
Understanding refrigeration systems
Evaluating refrigerants
Thermodynamics
Main components of the compression refrigeration circuit
Subcooling / Superheating
And much more ...
What else I would like to say to other installers, the device really saves a lot of time, you don't have to take as much stuff with you, you don't have to do as much yourself, because the testo 557s does everything for you.
Tom Siben
·Service technician at Lennox
In the past, we had to work with analogue measuring devices and needed a notepad and we needed external temperature sensors. Testo has now incorporated all of this into a single device. This makes it much easier and much quicker for us to satisfy the customer with the performance of their device.
Peter van Vliet
·Croonwolter&dros
My first impression is very positive, a very nice, new measuring set, the purchase of which you certainly won't regret as a cooling technician. I don't think any other brand can compete.
Marco Slump
·Owner of Slump Heating and Refrigeration, Appingedam (NL)
Find all the latest news, tools and trends: get our free HVAC/R magazine and find out everything about the big trends in industry. Benefit from exclusive professional tips, and gain fascinating insights into the testo Smart World.
The top trends in the industry
Special report: heat transition
Exclusive professional tips
Automation vision
And lots more!